Nikola Mladenovic
@nikolamladenovic
Experienced system and web administrator focused on secure, reliable Linux infrastructure.
SerbiaWhat I'm looking for
I am a system and web administrator with extensive hands-on experience managing and securing Linux-based infrastructures for production websites and services. I have maintained over 40 Linux servers, managed LAMP/LNMP stacks, and handled migrations and upgrades for Drupal and WordPress instances.
My work emphasizes security, backups, monitoring and automation: I set up Postfix mail servers, configured OpenVPN and WireGuard, implemented monitoring with Nagios/Zabbix and participated in projects using Ansible, Grafana, Prometheus and Borg. I routinely deploy and manage code via Git/Bitbucket and work with puppet-managed systems such as Aegir.
I bring practical troubleshooting skills, Office365 and Azure administration at the company level, and experience supporting colleagues and clients. I seek roles where I can apply strong system administration, automation and security practices to maintain reliable production environments.
Experience
Work history, roles, and key accomplishments
System and Web Administrator
Catalyst Balkans
Jun 2017 - Present (8 years 11 months)
Maintain and secure a fleet of 40+ Linux servers and websites, led migrations from Drupal 7 to Drupal 10 and implemented backup and monitoring solutions to ensure availability and integrity.
Junior Systems Engineer
Providus Managed Cloud
Dec 2015 - Feb 2017 (1 year 2 months)
Managed Debian/Linux, FreeBSD and Windows servers, handled monitoring, DNS, load balancing and DDoS mitigation, and supported LAMP/LNMP stacks and Virtualmin/WordPress deployments.
Education
Degrees, certifications, and relevant coursework
School of Electrical Engineering and Computer Science Applied Studies
Bachelor of Computer Science, Computer Science
2011 - 2018
Completed a Bachelor of Computer Science with a BA thesis titled 'Linux as a network server - Nginx web server'.
Availability
Location
SerbiaAuthorized to work in
Job categories
Interested in hiring Nikola?
You can contact Nikola and 90k+ other talented remote workers on Himalayas.
Message NikolaFind your dream job
Sign up now and join over 250,000+ remote workers who receive personalized job alerts, curated job matches, and more for free!
